package v1ch12.gridbag;

import java.awt.*;

/**
 * This class simplifies the use of the GridBagConstraints class.
 *
 * @author Cay Horstmann
 * @version 1.01 2004-05-06
 */
public class GBC extends GridBagConstraints {
	/**
	 * Constructs a GBC with a given gridx and gridy position and all other grid
	 * bag constraint values set to the default.
	 *
	 * @param gridx the gridx position
	 * @param gridy the gridy position
	 */
	public GBC(int gridx, int gridy) {
		this.gridx = gridx;
		this.gridy = gridy;
	}
	
	/**
	 * Constructs a GBC with given gridx, gridy, gridwidth, gridheight and all
	 * other grid bag constraint values set to the default.
	 *
	 * @param gridx      the gridx position
	 * @param gridy      the gridy position
	 * @param gridwidth  the cell span in x-direction
	 * @param gridheight the cell span in y-direction
	 */
	public GBC(int gridx, int gridy, int gridwidth, int gridheight) {
		this.gridx = gridx;
		this.gridy = gridy;
		this.gridwidth = gridwidth;
		this.gridheight = gridheight;
	}
	
	/**
	 * Sets the anchor.
	 *
	 * @param anchor the anchor value
	 * @return this object for further modification
	 */
	public GBC setAnchor(int anchor) {
		this.anchor = anchor;
		return this;
	}
	
	/**
	 * Sets the fill direction.
	 *
	 * @param fill the fill direction
	 * @return this object for further modification
	 */
	public GBC setFill(int fill) {
		this.fill = fill;
		return this;
	}
	
	/**
	 * Sets the cell weights.
	 *
	 * @param weightx the cell weight in x-direction
	 * @param weighty the cell weight in y-direction
	 * @return this object for further modification
	 */
	public GBC setWeight(double weightx, double weighty) {
		this.weightx = weightx;
		this.weighty = weighty;
		return this;
	}
	
	/**
	 * Sets the insets of this cell.
	 *
	 * @param distance the spacing to use in all directions
	 * @return this object for further modification
	 */
	public GBC setInsets(int distance) {
		this.insets = new Insets(distance, distance, distance, distance);
		return this;
	}
	
	/**
	 * Sets the insets of this cell.
	 *
	 * @param top    the spacing to use on top
	 * @param left   the spacing to use to the left
	 * @param bottom the spacing to use on the bottom
	 * @param right  the spacing to use to the right
	 * @return this object for further modification
	 */
	public GBC setInsets(int top, int left, int bottom, int right) {
		this.insets = new Insets(top, left, bottom, right);
		return this;
	}
	
	/**
	 * Sets the internal padding
	 *
	 * @param ipadx the internal padding in x-direction
	 * @param ipady the internal padding in y-direction
	 * @return this object for further modification
	 */
	public GBC setIpad(int ipadx, int ipady) {
		this.ipadx = ipadx;
		this.ipady = ipady;
		return this;
	}
}
